which will be magnetic interference is shielded wire is formed in the shield layer

Then use the local line . When due to the ring current, which will be magnetic interference is shielded  wire is formed in the shield layer . The correct approach is to shield the single point grounding ,  generally choose its head at either end of the ground . Furthermore, the sensing circuit may add additional  shielding box or shield the signal , not just the ground shield and, if necessary also with an insulating  outer shield layer . ( 3 ) Ground : Practice has proved that the grounding system disruption and systems  have a great relationship , the ground is one winch manufacturers  of the important means to suppress interference. The main  content [ 17 ] Ground jamming technology, one of which is to avoid the interference of the ring current ;  second is to reduce the common ground impedance coupling interference. In this system, all analog circuits hand chain hoist  with digital ground is connected only at one point , " a little ground ," effectively avoid ground loop  currents ; while in "a little ground ," the premise of parallel ground is common ground to reduce the  coupling impedance interfere with effective measures ; they are the most basic grounding method used in  industrial control systems . 3.6.3 Process -channel interference measures ( 1 ) In order to avoid signal  transmission